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I try to enable one finger scrolling in firefox ( it's more comfortable to scroll like that with a touchscreen). The default fedora version of firefox and chromium work like that.

I tried to launch firefox with the option MOZ_USE_XINPUT2=1 but it doesn't work.. Can you help me ??

  • It would help a little if you explain how you are trying to use MOZ_USE_XINPUT2=1, as in where did you place this command? – Charles Green Mar 2 at 14:43
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I had similar issues with the HP Pavilion x360. I found that MOZ_USE_XINPUT2=1 only works in Wayland, not Xorg. Furthermore, to make it a permanent solution I needed to follow these steps:

  1. open about:config in firefox to set dom.w3c_touch_events.enabled=1 (default is 2).

  2. edit /etc/security/pam_env.conf and add MOZ_USE_XINPUT2 DEFAULT=1

  3. reboot and restart firefox

See https://askubuntu.com/a/994483/799524

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